MathDB
Gluing cube

Source: Moscow Olympiad 2018, Grade 11, P2

April 7, 2018
geometry3D geometrytetrahedronpyramid

Problem Statement

There is tetrahedron and square pyramid, both with all edges equal 11. Show how to cut them into several parts and glue together from these parts a cube (without voids and cracks, all parts must be used)